h3{
    color: darkturquoise;
    font-family: 华文彩云;
}
#a{
    color: chartreuse;
}
.c {
    color: fuchsia;
}
a,#a,.c{
    background-color: gainsboro;
}
input[type="text"]{
    color: orangered;
}
input[type="password"]{ background-color: darkturquoise}
*{
    border: 1px solid red;

}